Improvement in pumps



M. W. MGGORTNEY. Pump.

Nm-221,3 5. Patented Nov, 1879.

-Ill

MARTIN IV. MCCORTNEY, OF MOUNT PLEASANT, MICHIGAN.

IMPROVEMENT IN PUMPS.

Specification forming part of Letters Patent No. 221,335, dated November 4, 1879 application tiled July 3, 1879.

To all whom it may concern:

Beit known that I, MARTIN W. McGoR'rNnY, of Mount Pleasant, in the county of Isabella and State of Michigan, have invented a new and Improved Double-Acting Pump, of which the following is a specification.

My invention relates to a singlecylinder double-acting' force-pump for wells, ot' novel construction, having its valves and connections fitted in a simple and durable manner, and so as to be readily accessible.

The invention will be described in connection with the accompanying drawings, where- 11i- Figurel is a side elevation ofthe pump. Fi 2 is a vertical section ot the same. Fig. 3. is a horizontal section on the line xx of Fig. 2. Fig. 4 is a similar section on line 't1/y. Fig. 5 is a similar section on line z z. Fig. 6 is a plan View of the bottom plate which supports the pump-barrel;

Similar letters ot' reference indicatecorrespondin g parts.

The pump-barrel A is supported in a vertical position upon a bottom or sole plate, a., by legs b that project from the cylinderhead c, and are bolted to plate a. Thereby space is given beneath the cylinder for access of water to the inlet-valve that is seated in the head c.

d is a top plate supported above the barrel A by rods d', and formed with lugs c e, in which the pump-handle] is hung, and with a socket, g, through which passes the dischargepipe 7L. In the side of the socket gare setscrews g', by which the pipe h is clamped.

The plate d is apertured for the passage of the piston-rod 1', the plate thereby forming a guide for the rod; and the plate is also apertured for the passage ofthe links kk that connect the pump-handle with the piston.

By the above described construction the parts are all supported by the plates a d, and the wooden platt'orm that covers the well, as usual, is relieved from the strain of the handle.

The barrel or cylinder A is formed with a water-passage, l, at one side and lengthwise of the cylinder, which passage opens at its lower end into the cylinder, and at its upper end into a valve-chamber, m, which is covered by a cap, m', and to which the discharge-pipe It is connected.

The lower inlet-valve, yn, is seated upon the lower cylinder-head, c, which head is formed with an annular opening. The valve is centered 'by the apertured center socket, 0, that is sustained in place by depressed ribs o, and through which the valve-stein passes. A crosspin through the valve-stein prevents it from rising too far.

The valve-chamber m is cast in one piece with the upper head, p, of the cylinder. In the bottom of the chamber m are openings q q', the former leading to the waterpassage Z, and the latter to the eylinderA. These openings are fitted with disk-valves r l", which are hung at opposite ends of a rocking lever, s, whereby these valves move in opposite directions-that is to say, when one is open the other is shut. l

lhe lever s is hung on a bar, t, that rests upon the upper edge of the sides of chamber m., and is retained in placeby the cap m ,which is mortised to set over the bar t. p are the upper inlet openings, u, which are closed by a swinging' valve, c, litted beneath them,as next described.

The valve c is hung by arms in lugs at one end of a cross-bar, w, and is prevented from falling by a spring, o', that is fitted between bar w and the valve. The hole for the pivotpin ofthe valves is elongated, so that the valve may be forced up squarely against the inlet-openin gs.

The bar zo is held in place at one end by entering a mortise formed in the side of cylinder A, (see Fig. 4,) and at the other end by a lug or projection over which the cross-bar sets. The head p prevents the bar w from rising, and the bar and valve may be readily inserted and removed when the head p is oft'. The valve c and bar w are apertured for the passage ot' the piston-rod z'.

In operating, the cylinder A will be immersed below the water; the ldownward movement ot' the piston will open the valve c for inlet ot water, close the check-valve r and bottom valve n, and the water below the piston-head will be forced by the passage Z and opening q to the discharge-pipe. The upward In the head l movement of the piston will close valve c, open valve n, and the Water above the piston will be forced by the passage q and cham ber m to the discharge -pipe, the valve r at the same time closing the openin g q.

. This construe-tion renders all parts of the pump durable and accessible, and furnishes a double-acting force-pump adapted for raising water from wells by hand-power and in a continuous stream.

Having thus described my invention, what I claim as new, and desire to secure by Let-ters Patent, is-

l. In a double-acting pump, the rocking lever s, carrying the @duction valves 1" 1", the sustaining-bar t, and mortised cap m', combined together and with the chamber m, substantially as and for the purposes set forth.

2. In a double-acting pump, the head p, having inlet-openings u, the swinging valve c, and cross-bar w, combined together and with the barrel or cylinder A, substantially as and for the purposes set forth.

3. The hinged inlet-valve c, the sustainingbar 1v, and spring c', in combination with the pumpcylinder A, formed with lugs or mortises for retaining the bar 1v, and iitted with the cap p, as and for the purposes specified.

MARTIN VALTER MCGORTNEY.

Witnesses D. P. HANsoN, Il. M MoGoR'rNnY. 

